After updating to Windows 8.1 my Photoshop CS4 Version 11.0.1 always crashes during start-up. The compatibility site tells me that this latest version of CS4 should be compatible, so I'm not sure why it keep crashing. I can't get the program to even start so I can't check what settings and preferences I have set.

Unfortunately it doesn't give any specific error, it just crashes before even being able to start up. It usually crashes when the little start-up page says "Starting-up plug-ins...Color Efex Pro 4". I initially thought this plug-in was the source of the problem, but after doing some research I've found that it should be compatible with Windows 8.1 and the problem persists even after I've removed its folder from the "plug-in" folder.

I updated my video card driver just now with the latest version and I still can't get it to start up.